Cardiac monitoring device



FIG. 1 is a top perspective view of a cardiac monitoring device showing our new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a back elevational view thereof;

FIG. 5 is a right side view elevational view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines illustrate portions of the cardiac monitoring device that form no part of the claimed design. 

CLAIM the ornamental design for a cardiac monitoring device, as shown and described. 